Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D290067 | Handle for power operated painting system | Dennis E. Swanson, Jerome A. Grunstad | 1987-06-02 |
| 4540301 | Apparatus for applying liquid coatings | Dennis E. Swanson | 1985-09-10 |